*{
    margin: 0;
    padding: 0;
}
.leftBox{
    width: 30vw;
    background-color: #ebe0e0;
    float: left;
    height: 100vh;
   
}
.content{
    width: 70vw;
    height: 100vh;
    float: left;
    height: calc( 100vh - 50px );
    overflow-y: scroll;
}
.leftBox ul{
    list-style: none;
    line-height: 10vw;
    text-align: center;
}
 .active{
        color:white;
        background-color: red;
        position: relative;
        left: 0;
        width: 30vw;
        height: 10vw;
        top: 0;
    }
    .goodsBox{
        width: 30vw;
        float: left;
        margin-top: 5%;
        border-radius: 10px;
        margin-left: 2.5vw;
        margin-right: 2.5vw;
        height: 48vw;
        box-shadow:1px 1px 1px 1px gray;
        padding: 5px;
        text-align: center;
        position: relative;
      }
      .goodsTitle{
        font-size: 12px;
        margin-top: 10%;
      }
      .goodsPrice{
        font-size: 13px;
        position:absolute;
        bottom: 5px;
        left: 33%;
        color: rgb(255,113,0);
      }